Network Management Flashcards Preview

CCNA > Network Management > Flashcards

Flashcards in Network Management Deck (14)
Loading flashcards...
1
Q

What are the 3 major components of SNMP?

A

SNMP Manager
SNMP Agent
MiB

2
Q

SNMP manager

A

The SNMP manager controls and monitors the devices within the network by using SNMP. The SNMP manager can be part of an NMS such as Cisco Prime Infrastructure.

3
Q

SNMP agent

A

The SNMP agent is the component that is run directly on the device and maintains data and reports this data (if needed) to the SNMP manager

4
Q

MiB

A

MIB is a virtual information storage location that contains collections of managed objects. Within the MIB, there are objects that relate to different defined MIB modules (for example, the interface module).

5
Q

What is the major flaw with SNMPv1?

A

it sends everything in plain text with the community string being the only authentication

6
Q

What changed in SNMPv2?

A

adds bulk collection mechanism but still uses plain text community string authentication

7
Q

What is new in SNMPv3?

A

It adds support for strong authentication and private communication between managed entities. The key security additions to SNMPv3 follow:
Can use MD5 or SHA hashes for authentication
Can encrypt the entire packet
Can guarantee message integrity

8
Q

SNMP configurations tasks

A

Task
Command Syntax
Configure the SNMP contact information
Router(config)# snmp-server contact text
Configure the SNMP device location
Router(config)# snmp-server location text
Configure the SNMP device serial number
Router(config)# snmp-server chassis-id number
Display the current SNMP contact information
Router# show snmp contact
Display the current SNMP device location
Router# show snmp location
Display the current SNMP device serial number
Router# show snmp chassis

9
Q

command to set syslog server

A

logging ip of syslog server

10
Q

command to serverity level required a messaged to sent to syslog server

A

logging trap severity level

11
Q

What is netflow?

A

A feature of some routers that allows them to categorize incoming packets into flows. Because packets in a flow often can be treated in the same way, this classification can be used to bypass some of the work of the router and accelerate its switching operation.

12
Q

command to enable netflow on an interface

A

ip flow {ingress | egress}

13
Q

command to set recipient of netflow data

A

ip flow-export destination ip-address udp-port

14
Q

command to specify the netflow version the export uses

A

ip flow-export version version